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SIS 16 63 26-1963 Nonrigid polyvinyl chloride extrusion and moulding compounds General information《乙烯塑料 非刚性聚氯乙烯挤出和模塑化合物 一般信息》.pdf 8

SIS 16 63 26-1963 Nonrigid polyvinyl chloride extrusion and moulding compounds General information《乙烯塑料 非刚性聚氯乙烯挤出和模塑化合物 一般信息》.pdfSIS 16 63 26-1963 Nonrigid polyvinyl chloride extrusion and moulding compounds General information《乙烯塑料 非刚性聚氯乙烯挤出和模塑化合物 一般信息》.pdf

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SIS 16 63 25-1963 Nonrigid polyvinyl chloride extrusion and moulding compounds《非刚性聚氯乙烯挤出和模塑化合物》.pdf 3

SIS 16 63 25-1963 Nonrigid polyvinyl chloride extrusion and moulding compounds《非刚性聚氯乙烯挤出和模塑化合物》.pdfSIS 16 63 25-1963 Nonrigid polyvinyl chloride extrusion and moulding compounds《非刚性聚氯乙烯挤出和模塑化合物》.pdf

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SIS 16 63 21-1971 Rigid polyvinyl chloride compounds《硬质聚氯乙烯化合物》.pdf 2

SIS 16 63 21-1971 Rigid polyvinyl chloride compounds《硬质聚氯乙烯化合物》.pdfSIS 16 63 21-1971 Rigid polyvinyl chloride compounds《硬质聚氯乙烯化合物》.pdf

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SIS 16 63 11-1966 Polyvinyl chloride Determination of viscosity number of PVC resin in solution《聚氯乙烯 溶液中PVC树脂粘度值的测定》.pdf 2

SIS 16 63 11-1966 Polyvinyl chloride Determination of viscosity number of PVC resin in solution《聚氯乙烯 溶液中PVC树脂粘度值的测定》.pdfSIS 16 63 11-1966 Polyvinyl chloride Determination of viscosity number of PVC resin in solution《聚氯乙烯 溶液中PVC树脂粘度值的测定》.pdf

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SIS 14 22 60-1971 Tool steel cold work steel《工具钢，冷加工钢》.pdf 2

SIS 14 22 60-1971 Tool steel cold work steel《工具钢，冷加工钢》.pdfSIS 14 22 60-1971 Tool steel cold work steel《工具钢，冷加工钢》.pdf

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SIS 14 22 58-1973 Alloyed structural steel《合金结构钢》.pdf 2

SIS 14 22 58-1973 Alloyed structural steel《合金结构钢》.pdfSIS 14 22 58-1973 Alloyed structural steel《合金结构钢》.pdf

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SIS 14 22 58-1962 Alloyed structural steel《合金结构钢》.pdf 2

SIS 14 22 58-1962 Alloyed structural steel《合金结构钢》.pdfSIS 14 22 58-1962 Alloyed structural steel《合金结构钢》.pdf

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SIS 14 22 44-1974 Steel for hardening and tempering《淬火与回火用钢》.pdf 7

SIS 14 22 44-1974 Steel for hardening and tempering《淬火与回火用钢》.pdfSIS 14 22 44-1974 Steel for hardening and tempering《淬火与回火用钢》.pdf

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SIS 14 22 42-1971 Tool steel and spring steel hot work steel《工具钢和弹簧钢 热加工钢》.pdf 3

SIS 14 22 42-1971 Tool steel and spring steel hot work steel《工具钢和弹簧钢 热加工钢》.pdfSIS 14 22 42-1971 Tool steel and spring steel hot work steel《工具钢和弹簧钢 热加工钢》.pdf

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SIS 11 01 78-1964 Sampling for hardness test of powder metallurgica! products except cemented carbides《粉末金属硬度试验的采样除硬质合金外的产品》.pdf 1

SIS 11 01 78-1964 Sampling for hardness test of powder metallurgica! products except cemented carbides《粉末金属硬度试验的采样除硬质合金外的产品》.pdfSIS 11 01 78-1964 Sampling for hardness test of powder metallurgica! products except cemented carbides《粉末金属硬度试验的采样除硬质合金外的产品》.pdf

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